33 results about "Difficult airway" patented technology

The invention provides an intelligent airway management system and method, and the method comprises the steps: screening an effective region of an intubation structure in each airway image through the pixel contribution degree in each airway image, and determining the recognition attention of each airway image; determining a spatial topological structure relationship of the intubation structure in the airway of the patient among multiple view angles according to a spatial mapping relationship among key nodes related to the intubation structure in each airway image; performing cross-view cross fusion on each local feature and each global feature in the airway image at different visual angles based on the spatial topological structure relationship and all recognition attention to obtain a cross fusion feature vector of the airway state of the patient; and generating a risk prediction level of the difficult airway of the patient by combining a pre-constructed difficult airway prediction model with the cross fusion feature vector of the airway state of the patient. By adopting the scheme of the invention, airway state recognition based on a multi-view spatial topological relation can be realized, and the accuracy of difficult airway prediction can be improved.

The invention relates to the technical field of medical artificial intelligence, in particular to a difficult airway glottis feature intelligent identification method and system.The method comprises the steps that a breathing sound signal of a patient is collected through a miniature microphone embedded in a laryngeal mask, and a time-frequency graph is obtained through preprocessing; time-frequency domain feature self-adaptive extraction is carried out by adopting a three-channel parallel architecture, and a ring-shaped cartilage compression sound and a secretion interference sound are separated through a double-path noise feature learning network; capturing glottis features of different time scales from microcosmic to macroscopic by using a multi-scale glottis feature pyramid fusion technology; time sequence modeling is carried out through a BiGRU network and a time attention mechanism, and a glottis state sequence is identified; according to the method, a Cormack-Lehane grading result is determined based on a double-branch decision network and Bayesian decision reasoning, laryngoscope model recommendation is given, the difficult airway prediction accuracy rate is improved to 91.7% and is improved by 25%-30% compared with a traditional method, anesthesia related complications can be effectively reduced, and the success rate of first intubation is improved.

The invention relates to the field of medical equipment, in particular to a visual double-cavity laryngoscope and thyrocricocentesis integrated device for difficult airways, which comprises a double-cavity laryngoscope main body and a thyrocricocentesis device, the outer surface of the double-cavity laryngoscope main body is fixedly connected with a connecting plate, the other surface of the connecting plate is fixedly connected with a hemispherical shell, and the hemispherical shell is fixedly connected with the double-cavity laryngoscope main body. The integrated structural design is adopted, the core functions of a visual double-cavity laryngoscope and a cricothyroid membrane puncture instrument are organically integrated, the current situation that the two traditional instruments are independently used and need to be frequently switched is thoroughly changed, an operator can sequentially complete glottis exposure and tracheal intubation operation on the same device, and if intubation fails or a patient suffers from emergency oxygen deficit, the visual double-cavity laryngoscope and the cricothyroid membrane puncture instrument can be directly used. The cricothyroid membrane puncture device which is assembled in place can be directly used for implementing puncture without additionally replacing instruments, so that the operation continuity is greatly improved, the key time for establishing an airway is effectively shortened, and the oxygen deficit risk of a patient caused by instrument switching is fundamentally reduced.

The utility model relates to a visual laryngoscope for a difficult airway, which can effectively reduce operation difficulty and improve use convenience and comprises a laryngoscope handle, a display screen arranged above the laryngoscope handle and a first laryngoscope tube arranged below the laryngoscope handle, and the outer end of the first laryngoscope tube is connected with a second laryngoscope tube through a bendable adjusting portion. Annular clamping grooves are formed in the first mirror tube and the second mirror tube; a lens and an illuminating lamp are arranged at the front end of the second laryngoscope tube, and an adjusting handle for controlling the adjusting part to bend is arranged on the laryngoscope handle. The utility model further provides a trachea cannula protection sleeve device, iatrogenic airway infection can be effectively reduced, the trachea cannula protection sleeve device comprises an endoscope tube protection sleeve and a cannula protection sleeve which are arranged side by side, the outer walls of the endoscope tube protection sleeve and the cannula protection sleeve are fixedly connected together, the inner diameter of the endoscope tube protection sleeve is matched with the outer diameter of the endoscope tube, and two soft tightening parts corresponding to the clamping grooves are arranged on the endoscope tube protection sleeve. A rubber band is arranged at the tightening part; and a perspective lens is sealed at the front end of the lens tube protective sleeve.

The invention discloses a difficult airway patient intubation device for anesthesia, and relates to the technical field of medical equipment.The difficult airway patient intubation device for anesthesia comprises a base, connecting frames are arranged on the two sides of the upper end of the base, and clamping assemblies with adjustable positions are arranged on the outer walls of the two connecting frames and used for fixing the head of a patient; the fixing assembly is arranged on the clamping assembly and is used for fixing a cannula of a patient user and preventing the cannula from being squeezed by teeth of the patient, so that airway obstruction is caused; the base is provided with a supporting bag capable of jacking up the rear neck of a patient. According to the intubation device for the patient with the difficult airway for anesthesia, the head of the patient is clamped through the arranged clamping device, air is pumped into the supporting bag through the air bag, the rear neck of the patient can be supported, and therefore the head can lean backwards, and the problem that intubation is inconvenient for medical staff is solved.

The invention discloses a visual retrograde tracheal intubation device, belongs to the technical field of medical apparatuses and instruments, and is suitable for airway establishment of difficult airways. The device comprises a cricothyroid membrane puncture assembly, a visual acquisition assembly, a guide wire assembly and an image output assembly. The cricothyroid membrane puncture assembly comprises a hollow puncture needle, the visual collection assembly is arranged in the hollow puncture needle and located at a preset position behind a needle tip, and a preset included angle is formed between the imaging direction of the visual collection assembly and the axis direction of the puncture needle; an imaging window corresponding to the visual acquisition assembly is arranged on the needle wall of the hollow puncture needle and used for obtaining image information in the airway. The guide wire assembly enters an airway through the puncture assembly and moves reversely along the airway, the visual acquisition assembly is used for capturing at least one part of images of a guide wire in the airway, and the image output assembly is used for outputting image information to an operator so as to assist in judging the trend and position of the guide wire. Real-time visual guidance is provided in the retrograde intubation process, the dependence on experience of an operator is reduced, the risk that the guide wire enters the non-target direction by mistake is reduced, the operation time is shortened, and the safety and success rate of difficult airway retrograde tracheal intubation are improved.

The oxygen uptake and carbon dioxide monitoring device for the difficult airway under the gastroscope comprises a cover body and a seam, a guide structure is arranged on the seam and comprises an arc-shaped extending part and a baffle ring, the arc-shaped extending part is fixedly connected to the side portion of the seam, and the baffle ring is arranged on the arc-shaped extending part. A placement channel for guiding a gastroscope pipeline is formed in the arc-shaped extension part; through the design of the structures such as the nip, the arc-shaped extension part and the placement channel, the arc-shaped extension part is arranged on the nip, so that a gastroscope pipeline can enter the throat more smoothly after being guided by the placement channel, stimulation and discomfort to the throat of a patient are reduced, and the comfort and safety of the patient are improved; the guide structure is arranged on the nip, so that a doctor can find a correct insertion path more quickly, discomfort of a patient and additional injury caused by repeated attempts are reduced, time wasted by the repeated attempts can be reduced, and the efficiency of gastroscopy is improved.

The present application relates to a kind of difficult airway evaluation system based on double body position cervical X-ray, the system includes X-ray data acquisition unit, feature fusion extraction unit and prediction unit;The X-ray data acquisition unit is used to obtain the cervical X-ray data of two different body positions of the object to be evaluated;The feature fusion extraction unit is used to carry out multi-level feature extraction and fusion based on the cervical X-ray data corresponding to different body positions, obtain double body position fusion feature vector;The prediction unit is used to carry out classification prediction based on the double body position fusion feature vector, obtain difficult airway evaluation result.The present application solves the problem that single body position data is used when image data is used for difficult airway evaluation in the prior art, which cannot accurately and effectively evaluate difficult airway, and is easy to cause airway misjudgment.

The invention discloses a difficult airway prediction method and prediction device, and belongs to the technical field of clinical medical treatment. The method comprises the steps that real-time physiological data of a patient are collected, and a first body position state label is generated according to current body position state information; and marking a first body position state label on the real-time physiological data. And inputting the real-time physiological data marked with the first body position state label into a trained difficult airway prediction model to generate a first prediction result. And if it is detected that the current body position state information of the patient is updated, generating a second prediction result, and determining the second prediction result as a final prediction result. And if it is not detected that the current body position state information of the patient is updated, determining the first prediction result as a final prediction result. That is to say, in the difficult airway prediction process, multi-modal data are depended on, the body position change of the patient is monitored in real time, the influence of the body position change on the difficult airway is considered, the dynamic analysis ability is achieved, and the difficult airway prediction accuracy is improved.

The invention discloses a children tracheal intubation navigation device for difficult airways, the intubation navigation device comprises a catheter, the tip section of the catheter is sequentially provided with an SMA driving assembly and a piezoelectric ceramic driving assembly along a first direction, the SMA driving assembly can drive the tip section of the catheter to macroscopically rotate at a large angle, and the piezoelectric ceramic driving assembly can drive the tip section of the catheter to rotate at a large angle. The piezoelectric ceramic driving assembly can drive the sharp section of the guide pipe to rotate in a precise fine adjustment mode, and when the SMA driving assembly drives the sharp section of the guide pipe to rotate, the piezoelectric ceramic driving assembly is started to restrain vibration. The SMA driving assembly provides large-stroke and high-torque coarse adjustment and is suitable for passing through glottis, carina and other scenes needing large-angle steering, the piezoelectric ceramic driving assembly provides high-precision and high-response-speed fine adjustment, and avoiding of tiny blood vessels and tissues is achieved; the SMA driving assembly is prone to generating mechanical oscillation during starting and stopping, the sharp section of the catheter can shake to scratch fragile airway tissue, at the moment, the piezoelectric ceramic driving assembly actively restrains vibration, and the stability and safety of operation are greatly improved.

The present application relates to a kind of multi-dimension lock regulating airway management training model, comprising: neck range of motion adjustment unit, neck range of motion adjustment unit is used to simulate the normal activity state and activity limited state of neck;Tongue body swelling simulation unit, tongue body swelling simulation unit is used to simulate the natural state and different degrees of swelling state of tongue body;Glottic area stenosis simulation unit, glottic area stenosis simulation unit is used to simulate the natural open state and different degrees of stenosis state of glottic area;Multi-dimension lock regulating airway management training model is configured to: by independently adjusting neck range of motion adjustment unit, tongue body swelling simulation unit and glottic area stenosis simulation unit, the laryngeal view of model is presented as a plurality of preset states corresponding to different levels of difficult airway.The present application can simulate different levels of difficult airway scene, accurately restore the difficult airway caused by single factor or multi-factor superposition in clinic.

The utility model relates to the field of medical monitoring and anesthesia, in particular to a nasal end-expiratory carbon dioxide monitoring device for non-intubation general anesthesia, which comprises a detection tube and a disposable nasal cannula, the disposable nasal cannula is detachably communicated with one end of the detection tube, an expiration sensor is mounted on the inner wall of the detection tube and electrically connected with a controller, and the controller is electrically connected with the nasal end-expiratory carbon dioxide monitoring device. The controller is electrically connected with an indicator lamp, the controller and the indicator lamp are installed on the detection tube, and the controller controls the indicator lamp to flicker along with the expiration times of carbon dioxide. The device can effectively monitor end-expiratory carbon dioxide in real time for sedative and analgesic patients with non-intubation and difficult airway anesthesia, can timely and effectively recognize and give an alarm for airway obstruction, and can effectively give an early warning for hypoxia.

The invention relates to the technical field of medical instruments, and discloses a video self-retaining laryngoscope suitable for difficult airway laryngeal surgery, which comprises a handle, the outer wall of the handle is fixedly connected with a first connecting block, and the outer wall of the first connecting block is fixedly connected with a limiting block; the shifting mechanism comprises a pressing rod, a second limiting rod is fixedly connected to the interior of the pressing rod, and the outer wall of the second limiting rod is rotationally connected to the inner wall of the handle; the opening and closing mechanism is used for preventing the oral cavity from being damaged during intubation; the adjusting structure is used for adjusting the position of the handle. One end of a pressing rod is pressed to drive a second limiting rod to rotate in a handle, the other end of the pressing rod pushes a second connecting rod to move, and the second connecting rod pushes a transmission rod to move, pushes a third rotating block to rotate on a third connecting rod and then pushes a first rotating rod to rotate on a second supporting frame. And the shifting piece is driven to move, so that the second protective sleeve is lifted to extrude the oral cavity, and the trachea is opened.

The invention relates to a trachea cannula guide core externally connected with a display, which is used for general anesthesia trachea cannula. According to the technical scheme, the defects of an existing difficult airway tracheal intubation tool are overcome, the tracheal intubation tool capable of displaying images on a mobile phone or a computer displayer is provided, the images collected by a micro camera are transmitted to the mobile phone or other display equipment through a signal transmission line, and the images of the throat in the oral cavity are visualized through the mobile phone. The trachea cannula has the advantages of being low in cost, easy to produce, simple in structure and capable of effectively conducting difficult airway trachea cannula.

The invention discloses a high-risk anesthesia warning system and method based on a distributed network, and belongs to the field of medical information security. The system comprises a central database server which stores a high-risk patient list including a malignant hyperpyrexia history, a difficult airway history, a serious adverse drug reaction history and an abuse drug history based on a non-relational database; the security authentication gateway is used for realizing security access based on an OAuth 2.0 and a TLS protocol; the data access interface is used for providing RESTful API (Application Program Interface) to receive the patient identifier subjected to hash processing; the data processing and comparing module is used for executing low-latency query; and the warning information generating and pushing module is used for pushing the warning information in the JSON format to the target terminal through the message queue. Through a series of technical means, information islands among medical institutions are effectively broken, safe, real-time and efficient data interaction and warning are achieved, serious anesthesia complications can be remarkably avoided from the technical level, and medical safety in the perioperative period is improved.

The invention discloses a short visual intubation tool for difficult airway treatment, and belongs to the technical field of visual intubation. Comprising a fixed circular plate, a connecting column is fixedly connected to the lower surface of the fixed circular plate, an arc-shaped inserting plate is integrally formed at the bottom end of the connecting column, a rotating piece is arranged on the upper surface of the fixed circular plate, a connecting block is rotatably connected to the inner side of the rotating piece, and a display screen is fixedly connected to the upper surface of the connecting block; the device can be easily inserted into an airway with narrow oral space or limited body position of a patient through the short arc-shaped insertion plate, and the head posture of the patient does not need to be greatly adjusted, so that the risk of compression injury of airway tissues is reduced, and the operation convenience in space limited scenes such as emergency treatment, transfer and the like is improved; meanwhile, the short structure is matched with the display screen adjusted by the rotating part, the medical staff can observe the airway image through the display screen without excessively bending, and the operation experience is further optimized.

The invention relates to the technical field of physiological data processing, in particular to a difficult airway prediction system and method based on artificial intelligence. According to the system, the frequency of indirect features of a target patient in each laryngoscope exposure level is counted, and preoperative airway risk indexes of the target patient can be obtained by further combining the category similarity between the indirect features and reference features. According to the method, state information in an operation is obtained in real time, state risk indexes in the operation are obtained through space state changes of the pharynx, the root of the tongue and the front wall of the trachea, the more visual EtCO2 waveform disorder degree serves as a reference, the real-time airway influence coefficient capable of representing multi-dimensional risk factors is finally obtained, the real-time airway influence coefficient is used for prediction of a classification neural network, and a better prediction result is obtained. According to the method, feature analysis is carried out on the patient group before the operation, the physiological state of the patient is analyzed during the operation, effective risk indexes are comprehensively obtained and used for difficult airway prediction, the prediction accuracy is improved, and doctors can conveniently intervene in the subsequent operation process in advance.

The invention relates to the technical field of medical instruments, and provides a difficult airway intubation auxiliary device which comprises an air duct body and an auxiliary tube wall, the air duct body is provided with an upper curved surface and a lower curved surface, the upper curved surface abuts against the upper jaw of the oral cavity of the human body, and an open airway is formed in the upper curved surface; two ends of the open air passage respectively penetrate through two ends of the air passage main body; the auxiliary tube wall is arranged on the lower curved surface and forms an auxiliary channel, one end, close to the lip of the oral cavity of the human body, of the auxiliary tube wall is connected with an oxygen tube, and the oxygen tube is communicated with the auxiliary channel. The difficult airway intubation auxiliary device can meet the clinical diversified auxiliary function requirements.

The present invention provides an intubation device for difficult airways that can be used alone or in conjunction with a fiber bronchoscope. The device comprises an insertion guide rail, the insertion guide rail comprising a guide rail body in the form of an arc-shaped strip, the outer arc surface of the guide rail body circumferentially extending and having a T-shaped guide slot extending circumferentially through the circumferential ends of the guide rail body; the guide rail body also circumferentially extending and having a video channel extending circumferentially through the circumferential ends of the guide rail body, a transparent lens embedded in one end of the video channel; a tongue depressor connected to the end of the guide rail body corresponding to the embedded transparent lens, and an operating handle fixedly disposed on the inner arc surface of the other circumferential end of the guide rail body; and a guide line extending to both ends is engraved on the bottom wall of the T-shaped guide slot. The device has a small overall thickness and can be used on difficult airway patients in various situations, such as those with small mouth openings.

The present invention provides a stabilizing rod and methods for accessing a difficult airway by intubating a subject using the stabilizing rod. The stabilizing rod includes a distal end comprising at least one section having a reduced outer diameter as compared to another more proximal section; a proximal end adapted and configured for selective engagement with at least one of a videoscope and a positive-pressure ventilation device; a largest outer diameter adapted and configured for passing through an inner diameter of a laryngeal mask airway (LMA); and a hollow bore extending between the distal end and the proximal end, the hollow bore being adapted and configured to receive a portion of the videoscope therein.

The modularized bronchoscope sheath comprises a rear-end fixing body and a front-end detachable insertion part, a standardized rapid connection structure is arranged at the front end of the rear-end fixing body, the front-end detachable insertion part is rapidly connected and matched with the standardized rapid connection structure, and an upward-picking bent section of 15-30 degrees is arranged at the front end of the front-end detachable insertion part. Various lengths and outer diameter specifications can be set, through the modular split design, a hospital only needs to configure 2-3 sets of fixing bodies to cover the whole-scene clinical requirements, glottis picking and intubation can be completed through single-person operation due to the design of the front end upward-picking bent section, the success rate of initial intubation of a difficult airway is increased, and the laryngeal mucosa injury rate is reduced; and the method is suitable for full-scene application of conventional respiratory intervention operation and emergency treatment difficult airway management.

The utility model discloses a children difficult airway retrograde intubation suit, which comprises a pigtail soft guide wire, a flexible guide wire, a flexible guide wire, a flexible guide wire, a flexible guide wire, a flexible guide wire and a flexible guide wire, wherein the front end of the flexible guide wire is provided with a silk thread; the guide wire coiling device is used for coiling and placing the pigtail soft guide wire; the front end part of the Y-shaped puncture needle is provided with a horseshoe-shaped inclined surface; 1% lidocaine is filled in the 5 ml injector; the 10ml injector is an empty injector and is used for judging whether a puncture part is in the trachea or not; and the sterile rubber gloves are used for ensuring sterile operation in the intubation process. According to the child difficult airway retrograde intubation set adopting the structure, retrograde tracheal intubation is completed through the intubation set, an artificial airway is established, and anesthesia safety is guaranteed. The kit is complete in configuration, and the related invasive operation causes less injury. And the design comprises an emergency ventilation device. The device is low in cost and quick to master, clinical problems can be quickly solved, the operation preparation time is shortened, and the overall process of an operation is accelerated.

The invention discloses a preparation method of a head and neck model with a difficult airway and a difficult airway intubation training method. The preparation method comprises the following steps: acquiring a first three-dimensional CT image with the difficult airway; the first three-dimensional CT image is preprocessed; marking the key anatomical region on the preprocessed first three-dimensional CT image, and generating first three-dimensional mask data according to a marking result; constructing an airway segmentation model based on a deep neural network, and performing training learning on the airway segmentation model by using the preprocessed first three-dimensional CT image and the corresponding first three-dimensional mask data to obtain a trained airway segmentation model; performing three-dimensional CT scanning on the to-be-operated patient with the difficult airway to obtain a second three-dimensional CT image; preprocessing a second three-dimensional CT image, and inputting the preprocessed second three-dimensional CT image into the trained airway segmentation model to obtain second three-dimensional mask data; and preparing a head and neck model of the patient to be operated according to the second three-dimensional mask data by using a 3D printing process.

The application discloses a difficult airway laryngoscope soft tissue active traction system and laryngoscope based on micro-fluid negative pressure adsorption, which comprises a micro-fluid negative pressure adsorption network arranged on a lens working surface, which generates distributed adsorption force to stabilize the traction of the tongue root and the pharyngeal lateral wall; a driving unit arranged in a handle, which automatically lifts and pulls the lens by using negative pressure to drive a piston; a clamping table sleeved on the outer side of the handle and slidable in the axial direction, which abuts against the lower jaw of a patient to provide a counterforce fulcrum; and a lifting degree adjusting mechanism connected between the piston rod and the root of the lens, which realizes the accurate fine adjustment of the lifting height of the lens in a hand-off state through a vertical sliding groove, a sliding block and a knob. The application is of the adsorption-traction mode, cooperates with the lower jaw support and the fine adjustment mechanism, releases the hands of an operator, continuously adjusts the glottis exposure degree according to real-time video feedback, improves the glottis exposure angle and the first intubation success rate, and is suitable for difficult airway scenes such as tongue hypertrophy and cervical spine rigidity.

The invention relates to the field of medical education training equipment, in particular to intelligent adjustable difficult airway management training equipment. Comprising an oral cavity simulation piece, an air pipe fixing structural piece arranged in the oral cavity simulation piece, a micro linear motor arranged on the air pipe fixing structural piece, a left movable plate and a right movable plate, and the left movable plate and the right movable plate are arranged on the air pipe fixing structural piece. The left movable plate is connected with the micro linear motor through a left movable plate fixing shaft, the right movable plate is connected with the micro linear motor through a right movable plate fixing shaft, and when the micro linear motor starts to work, the wedge-shaped sliding block is upwards jacked up by the micro linear motor; and the glottis structure in the oral cavity simulation piece is closed or loosened, so that the technical problems of single pathological simulation function and lack of real-time operation feedback of the existing traditional airway management simulation human equipment are solved, and the teaching purpose can be well met.

The first aspect of the invention is to provide a method for identifying difficult intubation based on formant frequency change. The second aspect of the invention is to disclose a difficult intubation identification system based on formant frequency change. The third aspect of the invention is to provide an electronic device. The fourth aspect of the invention is to provide a computer readable storage medium, an executable instruction is stored on the computer readable storage medium, and when the instruction is executed by the processor, the processor executes the method. According to the technical scheme disclosed by the invention, when the artificial airway is established, the difference existing in normal ventilation can be prompted according to the sound difference, so that the principle of existence of some difficult ventilation can be predicted, and an artificial intelligence algorithm is combined by analyzing the acoustic characteristics of the specific voice-Chinese phonetic alphabet produced by a patient, so that the artificial airway is established. And the technical scheme of rapid non-invasive identification of the difficult airway is realized.

The invention relates to the technical field of artificial intelligence and medical image processing, and discloses a pharyngoscope AI image auxiliary identification method and system. The objective of the invention is to solve the problems that traditional pharyngoscope examination depends on subjective experience, lesion recognition sensitivity is low, and diagnosis consistency is poor, airway prediction is not accurate and basic application is difficult due to lack of three-dimensional space modeling and multi-source information fusion. The method comprises the following steps: collecting a high-definition dynamic image in real time and carrying out denoising and motion correction; pixel-level segmentation and classification are carried out on 12 types of anatomical structures and 8 types of lesions through a deep learning model; and the positioning stability is improved by combining time sequence optical flow analysis. According to the scheme, high-sensitivity recognition, three-dimensional precise modeling and personalized decision support of tiny focuses are achieved, the intubation safety and the operation standardization level are remarkably improved, the difficult airway recognition accuracy rate reaches 92%, and a continuously-optimized closed-loop auxiliary system is formed.

The catheter comprises a catheter body, the far end of the catheter body is provided with a front slope opening, part of the catheter wall of the edge of a far-end catheter opening at the opening extends outwards to form a tongue-shaped tip, and the tongue-shaped tip is arranged opposite to the near-end catheter opening at the front slope opening of the catheter body and is integrally formed with the catheter body; a water-drop-shaped Murphy hole is formed in the side wall of the tongue-shaped tip side at the far end of the catheter body. According to the catheter for the tracheal intubation, the tongue-shaped tip and the catheter body are designed to be of the integrally-formed structure, and the improved drop-shaped Murphy hole design is adopted, so that the catheter is more suitable for the scene of intubation through a center line, such as intubation under a video laryngoscope and intubation through a laryngeal mask, airway injuries caused by intubation are reduced, and the tracheal intubation effect is improved. The trachea cannula has higher safety, reliability and operation efficiency in airway protection and difficult airway management, and is suitable for various different types of trachea cannulas of adults and children; and the guide pipe is simple in manufacturing process and convenient for mass production and manufacturing.

The invention relates to a difficult airway evaluation system based on double-body-position cervical vertebra X-rays. The system comprises an X-ray data acquisition unit, a feature fusion extraction unit and a prediction unit. The X-ray data acquisition unit is used for acquiring cervical vertebra X-ray data of two different body positions of a to-be-evaluated object; the feature fusion extraction unit is used for performing multi-stage feature extraction and fusion based on the cervical vertebra X-ray data corresponding to different body positions to obtain a double-body-position fusion feature vector; and the prediction unit is used for performing classification prediction based on the double-body-position fusion feature vector to obtain a difficult airway evaluation result. The problems that in the prior art, when image data is used for difficult airway evaluation, data of a single body position is adopted, the difficult airway cannot be accurately and effectively evaluated, and airway misjudgment is likely to be caused are solved.

The invention discloses a bronchofiberscope video-based real-time airway digital twinning system and a use method thereof, and the system comprises a bronchofiberscope which is internally provided with a CMOS image sensor and a motion sensing unit so as to collect airway condition data; the work station is electrically connected with the fiber bronchoscope so as to process the collected airway condition data and construct a three-dimensional airway model; the structured light scanner is electrically connected with the work station so as to carry out registration on the scanned head and neck body surface data and the three-dimensional airway model; the motion monitoring unit is electrically connected with the work station and used for monitoring respiratory motion and providing respiratory phase compensation for the three-dimensional airway model; and the information interaction unit is in communication connection with the work station and is used for capturing dynamic real views of the head, the neck and the airway and carrying out dynamic superposition registration on the three-dimensional airway model so as to obtain an airway digital twinborn model in the work station. The problems of three-dimensional visualization, dynamic modeling, real-time navigation and poor risk assessment in difficult airway management can be solved.